物理学报Issue(5)：49-58,10.DOI:10.7498/aps.62.050503
数字控制单相全桥电压型逆变电路的改进离散迭代模型
Improved discrete-time model for a digital controlled single-phase full-bridge voltage inverter∗
摘要
Abstract
An improved discrete-time model for a digital controlled single-phase full-bridge voltage inverter is proposed in this paper. Based on state-space averaging in every switching cycle, the improved discrete-time model combines the advantages of the average model and the traditional discrete-time model, which can accurately analyze the digital control delay and sample-and-hold process inherently in digital controlled system. Consequently, under the accuracy premise, the improved discrete-time model can effectively simplify the traditional discrete-time modeling. As an example, an LC filter capacitor-voltage and inductor-current feed-back plus voltage-reference feed-forward control algorithm is analyzed based on the improved discrete-time model. The stability boundary and oscillation frequency are accurately predicted. Finally, theoretical results are verified by simulations and experiments.关键词
单相全桥逆变电路/离散迭代模型/数字控制/分岔Key words
H-bridge inverter/discrete-time iterative map/digital control/bifurcation引用本文复制引用
吴旋律,肖国春,雷博..数字控制单相全桥电压型逆变电路的改进离散迭代模型[J].物理学报,2013,(5):49-58,10.基金项目
国家自然科学基金(批准号:51177091)和山东省自然科学基金(批准号:ZR2010EM055)资助的课题.Project supported by the National Natural Science Foundation of China (Grant No.51177091), and the Natural Science Foundation of Shandong Province (Grant No. ZR2010EM055) （批准号:51177091）
